The Prophet ﷺ reviewed him on the day of Uhud when he was fourteen years old and did not permit him to take part, then reviewed him on the day of the Trench when he was fifteen and permitted him.
حدثنا أحمد بن حنبل حدثنا يحيى عن عبيد الله أخبرني نافع
أن النبي ﷺ عرضه يوم أحد وهو ابن أربع عشرة فلم يجزه وعرضه يوم الخندق وهو ابن خمس عشرة سنة فأجازه